Stove-pipe damper



(No Model.)

G.VW. lMUDD.

STOVE PIPE DAMPER.

Patentedy Jan. 19, 1886.

WHA/8853 UNITED STATES PATENT OFFICE.

GEORGE W. MUDD, OF COLUMBUS, OHIO.

sTovE-PIPE DAMPER.

SPECIFICATION forming part of Letters Patent No. 334,715, dated January19, 1856.

Application filed Decemberl, 1884. Serial No. 150,856. (No model.)

To all whom it may concern:

Be it known that I, GEORGE W. MUDD, a cltizen of the United States ofAmerica, residing lat the city of Columbus, inthe county of Franklin andState of Ohio, have invented certain new and useful Improvements inStove-Pipe Dampers; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

My invention relates to an improvement in single-bearing stove-pipedampers; and it consists, rst, of a handle which forms the spindle andguide, and, second, ofa damper-plate provided with a slotted head toreceive the spindie, and these in combination with other features, allas more fully hereinafter described.

My invention is illustrated in the accompanying drawings, inwhich Figurel is a 1ongitudinal section; Figy2, a separate view of the handle, andFig. 3 a detached View of the damperplate and slotted head. l

In the drawings, A represents ay section of pipe and B the damper, whichmay be formed of any circular piece ot' metal.

C is the handle and spindle, consisting of a wooden cross-piece, d, andthe spindle part E, provided with round portionf, the collar g, and atits lower end with the shank'portion H, terminating in the lugsi. Theplate B has cast or otherwise made integral therewith a boss, L,provided with a slot, M, and open notches a a, forming channels at rightangles to the slot M. The slot M is adapted to receive the end of thespindle-shank, and when passed through the same and the handle isturned, the lugs i i rest and are secured in the channels n. To provideroom in Whichto thus turn the shank, the plate is provided 4l S is acupor sleeve placed over the spindle, v

bearing against the collar g, and constituting a chamber for a spiralspring, t, which surrounds the round portionfof the spindle and bearsdirectly against the pipe.

To adapt the invention to use, the cup S is put on the spindle, thespiral spring inserted in the cup around the'spindle, the shank ot` thehandle then inserted through a hole in the pipe, the washer and plateput in place, and the shank inserted through the boss L and turned untilthe lugsz' rest in the notches n. lt will be seen that there are buttive separate parts in this damper, consisting of the plate, washer,handle, sleeve, and spring, thus giving simplicity to the structure,removing friction, &c.

What l. claim ism Astove-pipe damper comprising the handle provided withthe collar g, the spindle part E, shank H, and lugs iz', in combinationwith the separate cup, spiral spring, the washer,and the damper-plate,the latter having formed on one edge and integral therewith the doubleslotted boss L, adapted to receieve the washer, and having the recess oin the plate beyond said boss, to aid in the operation of the handle,substantially as described.

In testimony whereof Iaiiix my si gnature in presence of two witnesses.

GEORGE W. lWIUDD. Vitnesses:

AUG. N. WHITING, T. M. LIvEsAY.

